DSS Networks 5161 - Manual (Page 22)

GigMAC PMC and PCI Board and Driver Users Manual
‘Insmod’ Command Line Parameters
The following parameters are used by entering them on the command line with
the modprobe or insmod command. For example, with Intel based card model
(ex. 5262, 5164, etc.) entering:
insmod dpm ChipSelector=1 IntrHoldOff=0
loads the dpm driver setting it for Intel chipset and setting the Interrupt Holdoff
latency to zero (disabled).
Parameter
Name
Valid
Range/Settings
Default Description
SetAutoNeg 0,1 1
This parameter specifies the enabling of auto
negotiation.
DuplexMode
0,1,2
(0=half, 1=full,
2=both)
1
Defines the direction in which data is allowed
to flow. Can be either one or two-directional.
If both. If auto negotiation is enabled, defines
modes advertised. If auto negotiation is
disabled sets duplex to this value.
PauseFlowEn 0, 1 1
This parameter enables or disables pause
frame flow control (typically enabled).
IntrHoldOff 0, 1 or 2 (0=off) 1
This value delays the generation of receive
interrupts in units of 100 microseconds.
Receive interrupt reduction can improve CPU
efficiency if properly tuned for specific
network traffic. Increasing this value adds
extra latency to frame reception and if set too
high could decrease the throughput of TCP
traffic.
MediaSpeed 10, 100, 1000 1000
If auto negotiation id disabled, speed forces
the line speed to the specified value in
megabits per second (Mbps). If auto
negotiation is enabled, sets the highest
speed advertised.
(adapters using copper connections only)
NumBufDescs 80 - 4096 256
This value is the number of transmit and
receive descriptors allocated by the driver.
Increasing this value allows the driver to
queue more transmit and receive buffers.
Each descriptor is 16 bytes.
MaxMtuSize 1500-9600 1500
This value is the maximum mtu size
supported in the driver.
MaxBufferSize
2048, 4096,
8192, 16384
2048
Sets the maximum buffer size supported in
the driver.
DSS NETWORKS, INC. Version: 2.0 Page: 22